| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.62 MB | Adobe PDF |
Advisor(s)
Abstract(s)
A exposição humana a aflatoxina B1 (AFB1) através da ingestão de alimentos
contaminados e o seu impacto no trato gastrointestinal (TGI)
constitui um domínio de crescente interesse científico. Para além do
conhecido potencial carcinogénico, os estudos experimentais em linhas
celulares, em animais e em populações humanas têm evidenciado um
relevante impacto desta micotoxina no TGI, incluindo no sistema imunitário
do intestino, órgão responsável por cerca de 70% das defesas
do organismo. A AFB1 tem a capacidade de provocar alterações na barreira
intestinal afetando o seu equilíbrio e dinâmica, o que pode induzir
o aparecimento de inflamações intestinais crónicas, entre outras patologias.
Estas alterações podem afetar a população em geral, contudo
podem constituir uma preocupação acrescida para populações vulneráveis
como grávidas e crianças, em virtude da transferência de AFB1
através da placenta. Assim, o presente trabalho tem como objetivo sensibilizar
a comunidade científica para o potencial impacto da micotoxina
AFB1 no intestino e contribuir para alertar e capacitar os profissionais
de saúde com conhecimento científico, por forma a atuarem, da forma
mais adequada, face ao eventual aumento das patologias associadas
ao TGI, que poderão ocorrer em virtude do maior número de ocorrências
de contaminação alimentar por AFB1, expectável como consequência
das alterações climáticas.
Human exposure to aflatoxin B1 (AFB1) through contaminated food ingestion and its impact on the gastrointestinal tract (GIT) is a field of scientific growing interest. In addition to the recognized carcinogenic potential, experimental studies on cell lines, animals and human populations have shown a relevant impact of this mycotoxin on GIT, including on the innate immunity of the intestine, the organ responsible for about 70% of the body's defenses. AFB1 has the ability to disrupt the intestinal barrier af fecting its balance and dynamics, and could promote the development of chronic intestinal inflammation, among other pathologies. These conditions may af fect the general population and could constitute a matter of increased concern for vulnerable populations, such as pregnant women and children, due to the AFB1 transfer across the placenta. Therefore, this study aims to sensitize the scientific community for the potential impact of the mycotoxin AFB1 in the GIT and to contribute to alert and empower the health professionals to act based on a deeper scientific knowledge, when faced with a possible increase in the number of pathologies associated to the GIT, which could occur as a result of the expected increase of food contamination by AFB1 as a consequence of climate change.
Human exposure to aflatoxin B1 (AFB1) through contaminated food ingestion and its impact on the gastrointestinal tract (GIT) is a field of scientific growing interest. In addition to the recognized carcinogenic potential, experimental studies on cell lines, animals and human populations have shown a relevant impact of this mycotoxin on GIT, including on the innate immunity of the intestine, the organ responsible for about 70% of the body's defenses. AFB1 has the ability to disrupt the intestinal barrier af fecting its balance and dynamics, and could promote the development of chronic intestinal inflammation, among other pathologies. These conditions may af fect the general population and could constitute a matter of increased concern for vulnerable populations, such as pregnant women and children, due to the AFB1 transfer across the placenta. Therefore, this study aims to sensitize the scientific community for the potential impact of the mycotoxin AFB1 in the GIT and to contribute to alert and empower the health professionals to act based on a deeper scientific knowledge, when faced with a possible increase in the number of pathologies associated to the GIT, which could occur as a result of the expected increase of food contamination by AFB1 as a consequence of climate change.
Description
Keywords
Aflatoxina B1 AFB1 Micotoxinas Exposição Humana Trato Gastrointestinal Cancro Intestino Contaminação dos Alimentos Segurança Alimentar
Pedagogical Context
Citation
Boletim Epidemiológico Observações. 2021 mai-ago;10(30):39-45
Publisher
Instituto Nacional de Saúde Doutor Ricardo Jorge, IP
